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Sago Pondweed

Potamogeton pectinatus

Last reviewed: August 2026

Sago Pondweed (Potamogeton pectinatus)
Photo: (c) Igor Balashov, some rights reserved (CC BY), uploaded by Igor Balashov

Toxicity unknown

Sago Pondweed (Potamogeton pectinatus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

high

Size

12"–48" H × 12"–48" W

Bloom

May, Jun, Jul, Aug, Sep

Native to

AL, AR, AZ, CA and 43 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Sago pondweed is an aquatic perennial that grows submerged in ponds, lakes, and slow-moving streams. This native plant produces small spikes of flowers above the water surface during summer months. It requires consistently wet conditions and is not suitable for typical landscape settings.

In an HOA neighborhood

Sago Pondweed takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.

  • Requires permanent standing water
  • Not suitable for standard residential landscapes
  • Would appear dead or absent in typical planting beds

Wildlife value

Provides important habitat and food for waterfowl, with seeds and tubers eaten by ducks and other aquatic birds. The submerged vegetation offers shelter for fish and aquatic invertebrates.

Common questions

How much sun does Sago Pondweed need?
Sago Pondweed grows best in part shade conditions.
When does Sago Pondweed bloom?
Sago Pondweed blooms in May, June, July, August, and September.
Where is Sago Pondweed native?
Sago Pondweed (Potamogeton pectinatus) is native to AL, AR, AZ, CA and 43 more states, per the World Checklist of Vascular Plants (Kew).
Is Sago Pondweed HOA-friendly?
Sago Pondweed takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Sago Pondweed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz